Dundalk, a place in Baltimore County with a total area of 45 km², is a census-designated place. As of 2016, it had a population estimated at 63,820. Opioid use disorder is a menace that is experienced in almost every part of the world. The population of Dundalk means it is likely home to a number of people suffering from opioid use disorder. Such people, if willing to medically treat it, may consider walking into any Dundalk methadone clinic for medication-assisted treatment. There are about three approved drugs for the medical treatment of opioid use disorder, but methadone clinics use methadone specifically. Not only do they dispense medication, but they also organize behavioral therapies to make sure that recovery is both physical and psychological. Some methadone clinics in Maryland may offer additional social and medical services like HIV and HCV services and primary care services. Methadone has been included in the list of essential medications by the world health organization. Although it is safe, it should be taken only under the supervision of a medication-assisted treatment expert. The first few days of methadone maintenance happens under the close observation of the health provider. Schedule for program visits may be drawn after the first few days. After some months, stable patients may be permitted to take medication at home between visits.